Stop the loops with a button

I have an infinite loop is and display of data. How can I end the loop with a button or a keypress?

Periodically perform a ProcessSystemEvents() call inside the loop. In a reminder of the STOP button, set a flag to indicate your loop to stop.

stop unsigned int = 0;

While (! stop) {}

data getmeasured

display the data

ProcessSytemEvents()

Sleep (250);   to be polite: it is impolite to spinlock, since you will monopolize the CPU and other threads can get hungry

}

then, in the reminder for a STOP button

STOP the button callback routine

stop = 1;

Tags: NI Software

Similar Questions

  • goes into infinity "tabs" loop when I type any email 'Contact us' button how can I stop the loop?

    goes into infinity "tabs" loop when I type any email 'Contact us' button how can I stop the loop?

    You use a Mac, or you're on another platform?

    Any other use of platforms:

    • Mac: Firefox > Preferences
    • Linux: Edit > Preferences
    • Windows: Firefox > Options

    Press F10, if the menu bar is hidden under Windows and Linux, or use "> Firefox Options/preferences.

  • lets stop the loop parralle notification

    Hello

    Everyone

    I created several loops producer/connsumer.

    A loop producer is business event that hold value control change of FP and then send queue consumer loop (solenoid)

    The other separate producer loop is to NEITHER 9213 display Temp data, I use another loop of consumer to acquire the data of NI9213

    I don't know if I can use notification to stop the two pairs of earrings.

    I hope that when I click on stop the whole process in PF button, then, the True value is sent to the notification. The NI 9213 producer loop then get this message to stop the loop. Now, stop process only control solenoid buttonhole since this button is in the structure of the event.

    I tried the notification. When I put wait notification NI 9213 looping, this loopkeep wait any notification and doesnot monitor temporary data

    Thank you


  • Stop the loop in the process

    Hello

    Once, I am for another question, desire to learn more about labview and these countless obscure secrets.

    Well my problem seem is a common problem, but I have not found the answer in other topics.
    Here are the levels of my (simpler if you look directly at VI) VI

    1st level, I have an event to bring the action or return to the main Vi
    level 2 (during the measurement process), I have an loo whilep with an event case inside to stop the loop if the process is blocked. but it does not work.

    And to make matters worse I can't press the keys at the start of the measure

    I'm on this problem for 10 hours is not a question asked without thinking, but I am really stuck.

    Thank you

    Firstly, stacking of the structures of the event is going to be tricky, very quickly, so I want to disencourage to do until you are an experienced developer of LV. You are currently a little diving on the "first numbers", which is generally understood as the warnings from the structure of the event.

    The second thing is that I understand that you want to terminate the wait function itself (which represents your external code). This can be done. The reason is simple: LV is just waiting for the code complete. So saying LV to stop his execution will happen as soon as LV "took over". This will happen once the external code is complete.

    You CAN complete the thread using the Windows API, but you should / must restart the entire application of the LV to prevent corruption of memory created by the son put to death (not recommended).

    hope this helps,

    Norbert

  • I want to stop the loop button shape 10g

    I want to stop a loop in the forms of pushbutton 10g it's like (SwingWorker() in java) (DoEvent() in .net)
    The problem in forms 10g that when you start a loop shape freezes and you are unable to broadcast any button on the form, I found the solution for this in form 6i by package d2kwutil * WIN_API_UTILITY. InterruptCheck (hButton) *.
    But in 10g I can't find a solution, Please help > > > > >


    declare
    hButton PLS_INTEGER;
    Start
    : interruptcheck.counter: = 0;
    hButton: = get_item_property('INTERRUPTCHECK.) PB_OFF', WINDOW_HANDLE);
    go_item ('interruptcheck.loopcount');
    set_item_property('INTERRUPTCHECK.) PB_OFF', ENABLED, PROPERTY_TRUE);
    set_item_property('INTERRUPTCHECK.) PB', ENABLED, PROPERTY_FALSE);
    set_application_property (CURSOR_STYLE, 'HELP');
    set_application_property (CURSOR_STYLE, 'WAIT < d2kwut60 >');
    I'm in 1.:interruptcheck.loopcount LOOP
    If WIN_API_UTILITY. InterruptCheck (hButton) then
    "exit";
    end if;
    : interruptcheck.counter: = i;
    synchronize;
    end loop;
    set_item_property('INTERRUPTCHECK.) PB_OFF', ENABLED, PROPERTY_FALSE);
    set_item_property('INTERRUPTCHECK.) PB', ENABLED, PROPERTY_TRUE);

    set_application_property (CURSOR_STYLE, 'DEFAULT');
    end;

    Published by: wael amar on May 1st, 2010 23:03

    OK, here's a unit test to work.

    The idea is taken from an article in oracle magazine (I don't have at hand, she, so I tried to restore it and "memory".) I remember the original was German doag-magazine and was written by Gerd Volberg).

    How to make the loop:

    PROCEDURE PR_DO_THE_LOOP IS
      nNumberInOneStep NUMBER:=2;
      tm               TIMER;
    BEGIN
         DEFAULT_VALUE(0, 'GLOBAL.INDEX');
      IF :GLOBAL.INDEX=0 THEN
           -- Didn't run yet, determine the max count
           :GLOBAL.MAX:=10000;
      END IF;
      LOOP
           -- Do the looping stuff
    
           -- Decrease counter
           nNumberInOneStep:=nNumberInOneStep-1;
           -- Increase globale counter
           :GLOBAL.INDEX:=:GLOBAL.INDEX+1;
           -- Exit conditions
           EXIT WHEN nNumberInOneStep=0;
           EXIT WHEN TO_NUMBER(:GLOBAL.INDEX)>=TO_NUMBER(:GLOBAL.MAX);
      END LOOP;
    
      -- reset index at end
      IF TO_NUMBER(:GLOBAL.INDEX)>=TO_NUMBER(:GLOBAL.MAX) THEN
           :GLOBAL.INDEX:=0;
      ELSE
           -- start timer for next iteration
           tm:=CREATE_TIMER('TM', 10, NO_REPEAT);
      END IF;
    END;
    

    The WHEN-TIMER-EXPIRED-trigger

    IF :GLOBAL.INTERRUPTED='Y' THEN
         MESSAGE('Interrupted at index ' || :GLOBAL.INDEX);
    ELSE
         PR_DO_THE_LOOP;
    END IF;
    

    The WHEN-button-PRESS-trigger the button stop

    :GLOBAL.INTERRUPTED:='Y';
    

    The WHEN-button-PRESS-trigger on 'start' - button

    :GLOBAL.INTERRUPTED:='N';
    PR_DO_THE_LOOP;
    
  • How to stop the program with 2 cases of event

    I know that this is a very easy solution, but I can't seem to find it.

    I have two cases of the event in a while loop. I worked previously with the case of an event, so I placed the button stop in the case of the event. However if I have 2 cases of the event can't place the button stop in one of them so, how can I stop the program then?

    If the stop button is outside of the case that the program will not stop.

    Here's my vi of adding two different values for output according to which key

    Add a change event value case more for wire to terminal under condition of loop and stop button.

    find the attached VI

    Kind regards

    Chick S

  • stop the loop inside while loop

    Hi all

    Is there a way to stop a loop within a while loop? Error-free program will stop running when you press the stop button, but I want to while loop continues to run in and only for the loop stops when the condition is met.

    Thank you!

    Hi TayAus 1.

    If you want to run the execution once? Maybe something like below? The code inside the structure of events can only run when the event source is triggered. For example, the code in the digital works only when it detects a change in the numerical value (just an example).

    When the button is selected, it should raise the event to stop as shown below:

    If you want to create the event source, create the structure of the event > right-click on the frame and select edit events dealing with this... > This should open Edit events.

    The example below is that I put the event source for the change in the value of x and x 2.

    So when x or x 2 value is changed, executes the code in the sous-schema event shown below.

    Warm greetings,

    Lennard.C

  • Start stop while loop with tab control

    I want to be able to start and stop a while loop by entering and leaving a tab.  I use a structure of the event to do so, but it seems not elegant or the right way to do it.  The only way I could get to the kind of work is by unchecking the lock front panel in case of structure.  I have attached a sample vi of what I have so far.

    The problem is that you can't even stop the program by pressing the stop button until you exit the tab, which is not a user friendly interface.

    The event should just manage basic user events.  Any given event does not take a lot of time to run.  While you are in the diagnostics tab, your code is stuck in this while loop.  Although the setting of the front panel of the lock allows you to do other things, the LabVIEW is just put on hold all these other events of the UI (like Stop button value change) and cannot handle them inside while the loop stops and allows outside while loop to go through again.

    You should have a parallel while loop to manage waveform graph.  You can use notifiers or queues or a motor of action FGV (see Ben Action Engine Nugget) to switch the starting or stopping of the update of the chart of waveform until the parallel of while loop.

  • Cp6: How to stop a slide with several buttons in a nonlinear presentation?

    Hello

    I would be very grateful for a solution to this issue, as I failed to find one yet in this forum.

    The presentation is non-linear, which means that the first slide is a kind of menu that you can choose another slide to explore and always comes back to the first.

    Each slide has several buttons that activate different audio files, and there is a button on the arrow in the lower right corner to jump to the first slide.

    The problem is that the slide does not stop after that you click on some of the audio buttons and continue on the next slide (instead of take a break until the user clicks on the arrow button). When I click a few buttons and listen to audio, eventually the slide automatically continues to the next slide.

    I tried:

    • Add button click box with "break project up to what the user clicks
    • change all the buttons for timing-> break after...
    • change only the arrow for Timing-> button pauses after...
    • and will not take unnecessarily long time to slide

    Any ideas?

    Thanks in advance,

    The best

    Acted

    You don't say 'how' to play the audio? In any case, the default behavior of interactive objects that trigger a simple action is out the read head. If you replace the simple action by a standard tip action one line, the playhead is not released. Watch this video (posterous is down once, again can not point to my blog):

    http://www.YouTube.com/watch?v=M3nKi-DB6Fw

    Lilybiri

  • Stop the sound of a button

    Hello..

    I have a small problem with the sound... I have an animation of main container with background sound which is full of soundChannel.

    I have also an external SWF that is loaded with video Clip buttons that have a BEARING ON sound on the timeline... after rolling discount - I place the:

    SoundMixer.stopAll (); to stop playing the sound button, once the mouse is released... However, the problem I'm running into is that it also stops the sound of the main container - suggestions clip? Thanks a bunch in advance!

    everything in your last message is correct, except that you use the soundchannel to load a sound.  you will use either the "new" constructor to instantiate your sound (if sound is in your library) or if you use a sound instance and the load() method of the sound class to load your sound.  the soundchannel is what is returned after applying the play() method to your sound. instance.

  • How can I stop the looping SOUND?

    Newbie here.

    I created a movie that makes a loop at the end of the last image. I have a built-in Sountrack'u which exceeds the sum of the last frame of the movie. When initially film loops, another copy of the audio clip starts playing on top of the initial melody (MP3). How can I stop the audio clip to restart when the movie back surrounds? I want just the 1st copy of the sound at the end and STOPS when the fact... or restart... I don't want it to start on top of itself...

    Cody21,

    > How can I stop the audio clip to restart when
    > the movie back surrounds? I want just the 1st copy
    > the sound at the end and STOPS when the fact... or restart
    > .... I don't want it to start on top of itself...

    Well, the sound is positioned in frame 1, probably, no? During the
    playhead enters frame 1, the sound goes off again. There are a number
    ways to configure your sound. Two basic methods are events and streams, which
    You can see the area of synchronization of the property inspector when you select the
    the frame that contains the sound. Event means that the audio load in memory all the
    at the same time and plays; Stream means that it has locked in step with the timeline.
    Stream means it does not start on top of itself - but it also means that audio
    stop when the timeline does.

    If your audio starts an image 1, I could see Adding a quick
    action gotoAndPlay (2) in the last frame of your timeline. Who would jump
    the playhead spent Framework 1.

    David Stiller
    Adobe Community Expert
    Dev blog, http://www.quip.net/blog/
    "Luck is the residue of good design."

  • Stop the preloader with a keyboard shortcut?

    Can I stop preloader with a keyboard shortcut?

    Sometimes I go to a site, & the preloader takes a loooong time. I already saw that I don't want to stay there, but are unable to leave until the site to load completely.
    Y at - it a shortcut that will stop the preload, & perhaps leave the site?

    CTRL + W seems to do the job when I tried earlier. If I have other problems, I will try other solutions.

    THANKS for the quick help!

  • Mail creation of massive log files and stop the synchronization with the server

    Since the upgrade to El Capitan (10.11.1), Mail presents two problems persist:

    (1) it generates massive log files, e.g. 2015-12 - 03_IMAPSyncActivity.log these files regularly exceed 10 GB and block Mail and freeze the Mac. Mail can be over 8 GB of RAM. Once removed, Mail recreates the file and fills again, ends up doing more massive files that must also delete.

    (2) mail stop sync with my different IMAP e-mail servers. The only solution I've found that it completely delete the or the e-mail accounts and reinstalls the account. It works for a day (or even a few hours) before it just stops the synchronization, even if a connection test shows he connects with the server. This problem seems to occur on two e-mail accounts separately on two different servers / hosting companies, but not on my Gmail accounts.

    These two problems occur on both my iMac (21.5 ", mid-2011, 2.5 GHz Intel Core i5, 8 GB RAM) and MacBookPro (13', mid-2011, 2.5 GHz Intel core i5, 4 GB RAM).

    Full of ideas gratefully received!

    Thank you!

    Please take these steps to remove the mail folders 'sandbox '.

    Step 1

    Back up all data.

    Triple-click anywhere in the line below on this page to select this option:

    ~/Library/Containers/com.apple.mail

    Right-click or Ctrl-click on the highlighted line and select

    Services ▹ Reveal

    the contextual menu.* A Finder window should open up with a folder named "com.apple.mail" selected. If this is the case, move the selected folder - not only its content - on the desktop. Open the window Finder for now.

    Restart the computer. Launch Mail and test. If the problem is resolved, you may have to re-create some of your e-mail settings. Any writing paper custom that you created may be lost. Ask for instructions if you want to keep these data. You can then delete the folder that you moved and close Finder.

    CAUTION: If you change the content of the sandbox, but leave the folder itself in place, Mail may hang or starts any. Remove the tray to sand everything will be rebuilt automatically.

    Step 2

    If step 1 does not resolve the problem, repeat with this line:

    ~/Library/Containers/com.apple.MailServiceAgent

    * If you do not see the item context menu copy the selected text in the Clipboard by pressing Control-C key combination. In the Finder, select

    Go ▹ go to the folder...

    from the menu bar and paste it into the box that opens by pressing command + V. You won't see what you pasted a newline being included. Press return.

  • VISA resources between the loops with the queue

    Hi all

    I am just be familiar with the queues and the producer/consumer model, and I am facing difficulties to pass data between the loops using queues, including data of the type "VISA Resource Name.

    Indeed, it seems impossible to cable "VISA Resource Name" as an entry of the item in the queue, as an output of the Dequeue item.

    These screws can I always try to convert something of this type can accept? Or should I take a different approach and that one?

    Thank you very much for your help.

    Florian


  • How can I stop all loop with number completely?

    Hello

    I want to stop any loop in a specific State. It's a part of my project.

    for example, I want to stop everything in a loop after that the i is 12. I can do, but the problem is that any new from 0 after the i is 12. I want to campletely the stop after the i = 12 I ever change

    I am attaching a photo to delete.

    Thank you very much.


Maybe you are looking for

  • One to One training

    I don't know how many people use the One to One training, but I have for about 2 years and it is excellent. I would book a session about 1/2 hour twice a month on various topics and went out after much learning. Now, Apple is retiring to this program

  • have updated a reference dell dimesion 4700 xp and have no audio

    I've updated a dimension 4700 dell xp I have no audio and might miss install something. I am a newbee and the guys over at upgrades have helped me, I don't know I tried their patience, bless Bill Smithers. Daavee and XPROCKS and also Geek.And Tech a

  • Windows 7 license number?

    Hello world I have a question about license windows 7. I have purchase a lenovo with windows 7 Professional, but the laptop comes with no license key on the bottom of the laptop, I've always seen in the lenovo win xp computer. is this normal? How can

  • Pavilion G6: Disabled system admin password reset

    At startup, I wonder a password I never created. You press enter 3 times and get disabled system [57040969]. Help, please. Thank you.

  • Only the C: partition?

    All that puts my data on the C: partition is worthless. He got rained at the end, but in bad weather I was reformatting and reinstallation on once a year.  If I have to put my data, even temporarily, I'll pass. OneDrive forces the user to use the C: